Potential indicating device

Details Potential indicating device Potential indicating device

G - Physics

01

R

324/29

G01R 19/14 (2006.01) G01R 15/22 (2006.01) G01R 19/155 (2006.01) G01R 35/00 (2006.01)

Patent

CA 1265197

Abstract A potential indicating device for indicating the presence of a voltage on a connector in a high voltage electrical distribution system, the connector including a conductor, a semiconductive shield and a test point terminal. The device comprises two separate indicator circuits, each energized by a different voltage capacitively coupled to the conductor. When a voltage is present in the conductor, first circuit means transmits a voltage capacitively coupled to the test point terminal to a visible indicator which flashes intermittently, and second circuit means transmits a voltage capacitively coupled to the semiconductive shield to an audible indicator when switching means closes the second circuit means. Preferably switching means comprises a photo- sensitive transistor normally shielded from light by a removable plug.

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